Chimney



oct. 29, 1940. s GRANSTROM 2,219,281

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A iiorneys l e@ i i l 4,

Oct. 29, 1940.- s. GRANsTRoM 2,219,231

pum llllli Patented Oct. 29, 1940 UNITED vSTATES PATENT oFPlcE CHIMNEY Sigfrid Granstrom, North Bend, Oreg. Application July 12, 1939, Serial No. 284,068 1 claim. (ci. 'z2-92) The present invention relates to new and useful improvements in chimneys and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character com- 5 prising a plurality of reinforced concrete sections of a novel construction and arrangement whereby the chimney may be expeditiously erected by unskilled labor and wherein the use of mortar is unnecessary.

Another very important object of the invention is to provide a sectional chimney of the aforementioned character which may be conveniently taken down when desired for removal to another location or for any other purpose."

vention is to provide a chimney of the character described which may expand and contract as the temperature varies without sustaining damage.

Other objects of the invention are to provide aA 80 chimney of the character set forth which will be comparatively simple in construction, strong, durable, freproof, light in weight and which may be manufactured at low cost.

All of the foregoing and still further objects 85 and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the 30 several views, and wherein:

' Figure 1 is an elevational view of a chimney constructed in accordance with the present invention.

Figure 2 is a vertical sectional view, taken sub-l 85 stantially on the line 2-2 of Fig. 1.

` Figure 3 is a view in front elevation of the base.

Figure 4 is a view in side elevation of the base. Figure 5 is a top plan view of the base. Figure 6 is a view in front elevation of the U) lower section which is mounted on the base.

Figure 7 is a top plan view` of the lower section.

Figure 8 is`-a bottom plan view of the lower section.

Figure 9 is a view in front elevation of an inter- 45 mediate section which is to be used when a ue is to be connected to the chimney at an intermediate point.

Figure 10 is a view in side elevation of the section shown in Fig. 9.

Figure 11 is a top plan View of the section shown in Figs. 9 and 10.

Referring now tov the drawings, in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a substan- 65 tially square concrete base which is designated Still another very important object of the in- Mounted on the base I is a plurality of superimposed chimney sections .5. Each section 5 includes a cylindrical ue 6 which is vertically aligned with the flue 2 of the base I. Each section 5 further includes an offset intermediate portion 1 depending from the flue 5 and merging lnto a substantially square outer wall 8.-

The lower portion of each flue 6 has formedl therein an internal seat 9 with which the upper end portion of the subjacent fiue is engageable. Then, the upper portions of the outer walls 8 of the sections 5 have formed therein recesses constituting external seats I in which the lower end portions of the superjacent walls 8 are engageable. It will be noted that the lower end of the lowermost section rests on the seat 4 of the base I. It will also be noted that this lowermost section 5 has formed therein an opening I I which is aligned with the flue conduit 3.

Mounted on the uppermost section 5 is a cap which is designated generally by the reference numeral I2. The upper portion of the cap I2 is externally tapered, as at I3. The lower end of the cap I2 engages the seat I0 of the uppermost section 5, as shown to advantage in Fig. 2 of the drawings. Also, the upper portion of the cap I2 has formed therein a seat I4 with which the upper end of the uppermost section 5 is engageable.

It is thought that the manner in which the chimney is erected and taken down will be readily apparent from a consideration of the foregoing. It may be well to here state that all of the members I, 5 and I2 are preferably of concrete suitably reinforced, as at l5. As many of the sections 5 may be used as may be necessary to erect a chimney of any desired height. When the chimney has been erected the portions 6, 1 and 8 of the sections 5 dei-lne, in conjunction with each other, a plurality of annular air chambers or spaces I5 from substantially the bottom to the top of the chimney. The construction and arrangement is such that the chimney-may be erected or taken down Without the use of skilled labor.

In Figs. 9, and 11 of the drawings there is illustrated an intermediate section 5 which is adapted for connection with a stovepipe or stack. Toward this end, the ue portion 6.0i this section 5 has formed integrally therewith and communicating therewith a conduit I1 which is substantially similar to the conduit 3. When the conduit or connection i1 is used a section similar to the lowermost section 5 shown in Fig. 2 of the drawings and having the opening il therein is to be used.

It is believed that the many advantages. of a. sectional chimney constructed in accordance with the present invention will be readily understood and although a preferred embodiment. of said chimney is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A chimney comprising a base having a marginal recess therein constituting a seat, a `circular flue integral with the base and rising therefrom, an integral conduit projecting laterally from the flue and communicating therewith, a substantially square chimney section mounted on the base in spaced relation to the flue and engaged in the seat, said chimney section having an opening therein aligned with the conduit for the reception of a stovepipe for connecting said stovepipe to the chimney, said chimney section further including an integral flue portion resting on the upper end of the rst named flue and aligned therewith.

` SIGFRID GRANS'IROM. 

